Measuring cock



Jan. 26, 1932. I .LIFECHTIG MEASURING COCK Filed June 12," 1931 2 sheets-*sheet 1 Jan. 26, 1932. J. FECHTIG V1842,862

MEASURING COCK .Filed June' 12, 1931 Patented Jan. 26, 1932 UNITED STATES JOHANN rEcH'rIG, or WYHLEN, GERMANY, AssIGNon 'ro THE FIRM or' ErsnNBAU PATENT,- OFFICE WYHLEN AKTIENGESELLSCHAFT, OF WYHLEN, GERMANY MEASURING COCK Application led June'. 12, 1931, Serial 110,544,025, and in Germany June 26, 1930.

The invention relates to a measuring cock for milk and other liquids in which a measuring vessel isfarranged vcoaxially on the cock casing.

The invention is characterized by the filling conduit in the plug for iilling the measuring vessel terminating approximately tangentially on the periphery of the cock casing inside the measuring vessel. In consequence the liquid in the measuring vessel is given a swirling motion and the air in the vessel is swept off the inner walls thereof and driven to the air vent. lIn this way the measuring vessel is rapidly filled to the top and can always be filled to the same amount.

The accompanying drawings illustrate two examples embodying the invention.

Fig. l is a vertical section of one embodiment, Y

Fig. 2 is aV plan view or Figure 1.

Figure 3 is a part section on the line A-A of Figure l.

Figure 4 is a cross section on the line B-B of Figure 3.

Figure is a section of a detail.

Figure 6 shows a'detail modification.`

Figure 7 shows the second embodiment,V and Figure 8 is a part section on the line X-X of Figure 7. Y

A dome shaped measuring vessel b of glass is detachably, coaxially secured to the cock casing a (Figure l) between two holding seats c, c1. d is the cock plug with the large bore filling conduit e which opens `tangentially on the plug periphery into the vessel 7) (Figure 4;) and in the open position is in communication with the liquid feed conduit g coming from the storage container In this position the liquid flows in a compact stream into the vessel with a swirling motion which drives the air before it, sweeping the whole of the vessel so that the air is positively driven towards the air vent conduit L in the upper part of the plug. Owing to the dome shape of the vessel of the air is gathered together towards the upper part of the plug and the conduit 7L, which also aids in satisfactory venting of the vessel. The air escapes Jfrom the conduitl 7L through the cen- 50 tral conduit e' while the vessel 7) fills, until a iloating ball valve k in the plug, raised by l Y the ascending liquid, linally closes the conduit z'.

The measured liquid can then be discharged from the vessel b by turning the plug which for thispurpose is furnished with a handle all, the liquid flowing out of the vessel through the lower lateral openings m.' n and the axial plug bore o, while air can enter the vessel b through the longitudinal groovegt-in the cock and the lateral air hole t1 in the cock casing.

TheV vessel b makes joint with the holding seats c, c1 by thev aid of rubber rings p. As shown in Figure 5 these lie in grooves g in the seats and can only becompressed until the edges of thevessel `bear hard against the edges of the grooves in the `seats c, e1. In this lway, it is ensured that when themappa'ratus is :put together theV measuring space inside thevesselrb is always the same, which with small measurements when a noticeable variation would occur with V,varying compression of the packing, is of. particular importance. Moreover by this means the liquid does not come into contact with the rubber rings.

To take the apparatusto pieces it suffices after. unscrewingthe nut 1", to pullthe plug out ot the casing, the float valve k accompanying it, and the bottom s of the .vessel b can be slid downwardly off the casing t0- gether with the vessel itself. `Putting together of the parts is equally easy, the compressionV of the packing rings p always being limited to the same amount by the hard Vcontact of the edges of the vessel against the margins of the packing grooves in the 'seats c, c1.

i In Figure 1 the air vent conduit 'i is covered by a dome u furnished with a plug of wadding or the like. In the modification shown in Figure 6 a beaker fb furnished wit-h1 a strainer is employed in its place. VIn'the above described embodiment the air can be driven off rapidly, but with only one vent conduit cannot escape sufciently rapidly because the air is dammed up on the side of the plug opposite the vent opening and cannot pass suiiiciently rapidly round the plug to the opening. This is particularly-the case with coldmilk, where frothing is nni l i l avoidable and the air containing bubbles do not easily move round the cock to the opening owing to the viscosity of the liquid.

This disadvantage is overcome in the embodiment shown in Figures 7 and 8 by the cock being provided not with one, but with two air vent passages distributed round its periphery so that the air has greater opportunities for rapid escape.

In this embodiment, a is again the cock casing, 71 the transparent measuring vessel coaxial therewith and Z the cock plug withV the filling conduit e and the air vent conduit 7L similarly to the rst embodiment, the filling conduit e again terminating tangentially at the periphery of the cock casing, inside the measuring vessel (see Figure 8). g is the liquid supply conduit.

In addition to the air vent conduit 71. which here leads to a rising pipe w in place of a iioat valve, the plug d is provided with a second air vent conduit h1 opening in its periphery at a point diametrically opposite the first, which joins the upper broader part of the conduit z, so that at any rate the air otherwise dammed at the point opposite the first opening and unable to pass suiciently rapidly around the plug to the conduit 7L can now rapidly escape. Naturally more than two air vent passages can be distributed round the periphery of the casing.

To reinforce the swirling of the liquid, here a bush is placed on the cock casing inside the vessel Y), which at the mouth of the lling conduit e has a curved guide vane 'm which ensures the tangential outflow of the liquid.

What I claim is Y l. A measuring cock having a casing and a plug, measuring vessel coaxial with the cock casing.l a'filling conduit in the cock plug for iilling said vessel` this filling conduit having a tangential outlet at the periphery of the cock casing inside the measuring vessel.

2. A measuring cock having a easing and a plug, a measuring vessel coaxial with the cock casing, a filling conduit in the cock plug for filling said vessel, this filling conduit having a tangential outlet at the periphery of the cock casing, inside the measuringl vessel, two holding seats between which thc vessel is removably secured, grooves in said seats and packing rings located therein, the whole being so arranged that the rings can only be compressed always to the same amount, until the edges of the vessel bear hard against the margins of the grooves in the holding seats.

3. A measuring cock having a casing and a plug, a measuring vessel coaxial with the cock casing and of dome form with its smaller end uppermost, a filling conduit in thecock Aplug for filling said vessel, this filling conduit having a tangential outlet at the periphery of the cock easing, inside the measuring vessel.

ll. A measuring cock having a casing and a plug, a measuring vessel coaxial With the cock casing, a filling conduit in the cock plug for filling said vessel, this lling conduit having a tangential outlet at the periphery of the cock casing, inside the measuring vessel, a plurality of air vent conduits being provided in the plug with their openings distributi 

